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The fuel-cost curves for two generators are given as follows:
Assuming the system is lossless, calculate the optimal dispatch values of
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Chapter 6 Solutions
POWER SYSTEM ANALYSIS+DESIGN-EBK >I<
- • T or F, modify the wrong part if False, please underline twice your answer if True or False. The current that flows in the armature of a DC generator is DC in nature.arrow_forwardA short shunt compound generator supplies a load of 20 kW at 500 V. The armature, series and shunt field resistance are 0.10 ohm, 0.05 ohm, and 100 ohms respectively. Find the power developed in the armature. Choices: 24600 W 20500 W 22800 W 25400 Warrow_forwardI need the answer as soon as possiblearrow_forward
- 32. The incremental cost characteristics of two generators delivering a load of 200 MW are as follows: dF = 2.0 + 0.01 P, dP, dP dF, -= 1.6 + 0.02 P, For economic operation the generators P, and P, should be (a) 120 MW and 80 MW (b) 81 MW and 120 MW (c) 120 MW and 120 MW (d) 80 MW and 80 MWarrow_forward1. If the number of poles in a lap wound generator is doubled, then the generated emf will be a) double c) constant d) zero b) halfarrow_forwardQuèstion 7 A shunt generator running at 1000 r.p.m. has generated e.m.f. as 300 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly 300 480 420 360 A Movinn to another ouestion will caro thic roenonco P Type here to search O O O Oarrow_forward
- A 6 pole DC lap wound generator has 38 armature conductors with flux per pole is 42 mWb and the e.m.f generated is 78 V, then the speed of the machine is 48.87 rps O 3.87 rps O 0.39 rps O 48.87 rps When the load on a series generator is decreased, then the flux produced will be increased. Select one: O True O Falsearrow_forwardA dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf * O 10 V O 200 V O 100 V O 20 Varrow_forwardProve that in a DC generator the maximum efficiency is obtained when constant loss is equal to the variable loss.arrow_forward
- When the load on a series generator is increased, then the flux produced will increase in direct proportion. Select one: True Falsearrow_forwardSolve it quickly pleasearrow_forwardQuestion 7 The following diagram shows a DC generator delivering power to a static load under transient conditions. Ra Vt RL Rt Lt Load tir Vr Write expressions for the generated voltage (e,) in terms of the constant of proportionality, Ke.arrow_forward
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning